import Vue from 'vue'
import VueRouter from 'vue-router'

// 登录组件
import Login from '@/components/Login.vue'
// 后台主页组件
import Home from '@/components/Home.vue'
// 子组件
import Welcome from '@/components/Welcome.vue'
import Users from '@/components/user/Users.vue'
import Rights from '@/components/power/Rights.vue'
import Roles from '@/components/power/Roles.vue'
import Cate from '@/components/goods/Cate.vue'
import Params from '@/components/goods/Params.vue'
import GoodsList from '@/components/goods/List.vue'
import Add from '@/components/goods/Add.vue'
import Order from '@/components/order/Order.vue'
import Report from '@/components/report/Report.vue'

Vue.use(VueRouter)


const router = new VueRouter({
  routes: [
    { path: '/', redirect:'/login'},
    { path: '/login', component: Login },
    // home路由配置
    { path: '/home', component: Home,
    redirect:'/Welcome',
    children:[
      { path:'/Welcome', component: Welcome },
      { path:'/users', component: Users },
      { path:'/rights', component: Rights },
      { path:'/roles', component: Roles },
      { path:'/categories', component: Cate },
      { path: '/params', component: Params },
      { path: '/goods', component: GoodsList },
      { path: '/goods/add', component: Add },
      { path: '/orders', component: Order },
      { path: '/reports', component: Report }
    ]}
  ]
})

// 路由导航守卫
router.beforeEach((to,from, next) => {
  // to将要访问的权限
  // from表示从那个路径跳转而来
  // next 是一个函数 表示放行
  //  next() 放行  next('/login') 强制的跳转
  if(to.path === '/login') return next();
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})


export default router
